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We discuss the potential of observing effects of CP-violation phases in squark decay chains at the LHC. As the CP-odd observable, we use the asymmetry composed by triple products of final state momenta. There are good prospects of observing…

High Energy Physics - Phenomenology · Physics 2015-05-18 K. Rolbiecki , G. Moortgat-Pick , J. Tattersall , P. Wienemann

We calculate the production of 2 b-quark pairs in hadron collisions. Sources of multiple pairs are multiple interactions and higher order perturbative QCD mechanisms. We subsequently investigate the competing effects of multiple b-pair…

High Energy Physics - Phenomenology · Physics 2010-11-01 F. Halzen , M. C. Gonzalez-Garcia , T. Stelzer , R. A. Vazquez

We consider the simplest extension of the SM with a complex singlet and a pair of heavy doublet vector quarks, the so-called cSMCS model. In this model, the CP violation can emerge spontaneously as a consequence of the time-dependent phase…

High Energy Physics - Phenomenology · Physics 2020-12-01 Neda Darvishi , Maria Krawczyk

We explore charged-Higgs CP-violating effects in an intriguing two-Higgs doublet model which accords special status to the top quark. In this model the heaviness of the top quark originates naturally from the much larger VEV of the second…

High Energy Physics - Phenomenology · Physics 2009-10-31 Ken Kiers , Amarjit Soni , Guo-Hong Wu

We review CP violation in various extensions of the electroweak sector of the Standard Model. A particular emphasis is put on supersymmetric models. We describe the two CP problems of supersymmetry, concerning $d_N$ and $\epsilon_K$. We…

High Energy Physics - Phenomenology · Physics 2016-11-03 Yuval Grossman , Yosef Nir , Riccardo Rattazzi

A dynamical scheme where the third generation of quarks plays a distinctive role is implemented. New interactions with a $\theta$ term induce the breaking of the electroweak symmetry and the top-bottom mass splitting. A large CP-violating…

High Energy Physics - Phenomenology · Physics 2009-10-30 D. Delepine , J. -M. Gerard , R. Gonzalez Felipe , J. Weyers

In this talk I review some recent results from lattice QCD calculations which aim to a more accurate determination of the Standard Model parameters in the quark sector. After a review of our current knowledge of these parameters, I present…

High Energy Physics - Phenomenology · Physics 2007-05-23 V. Lubicz

The last three years have seen a phase transition in our knowledge about CP violation: (i) Direct CP violation has been established in $K_L \to \pi \pi$. (ii) The first CP violation outside $K_L$ decays has been observed in $B_d \to \psi…

High Energy Physics - Phenomenology · Physics 2017-08-23 I. I. Bigi

Discovering CP-violating effects in the Higgs sector would constitute an indisputable sign of physics beyond the Standard Model. We derive constraints on the CP-violating Higgs-boson couplings to top and bottom quarks as well as to tau…

High Energy Physics - Phenomenology · Physics 2013-11-28 Joachim Brod , Ulrich Haisch , Jure Zupan

We review the highlights of quark mixing, particle-antiparticle mixing, CP violation and rare K- and B-decays in the Standard Model. The top quark discovery, the precise measurement of its mass, the improved knowledge of the couplings…

High Energy Physics - Phenomenology · Physics 2016-11-03 Andrzej J. Buras , Robert Fleischer

As the LHC becomes a top-quark factory and enters the era of precision measurements it presents us with a unique opportunity to search for new sources of CP violation. I discuss T-odd triple product correlations and the special role they…

High Energy Physics - Phenomenology · Physics 2013-01-08 German Valencia

The maximal CP violation hypothesis depends on the phase convention of the Cabibbo-Kobayashi-Maskawa matrix. A phase convention which leads to successful prediction under the maximal CP violation hypothesis is searched, and thereby,…

High Energy Physics - Phenomenology · Physics 2014-11-18 Yoshio Koide

We extend the $T$ violating model of the paper on "Hidden symmetry of the CKM and neutrino-mapping matrices" by assuming its $T$-violating phases $\chi_\uparrow$ and $\chi_\downarrow$ to be large and the same, with…

High Energy Physics - Phenomenology · Physics 2015-05-13 R. Friedberg , T. D. Lee

We work in a model where all CP violating phenomena have a common source. CP is spontaneously broken at a large scale $V$ through the phase of a complex singlet scalar. An additional $SU(2)_L$ singlet vector-like down-type quark relates…

High Energy Physics - Phenomenology · Physics 2014-11-18 Biswajit Adhikary

We review the subject of CP violation in $B$ decays in the Standard Model (SM) and beyond the SM. We describe some of the present most promising ways of testing the Cabibbo-Kobayashi-Maskawa (CKM) origin of CP violation through a…

High Energy Physics - Phenomenology · Physics 2014-11-17 M. Gronau

We review basic aspects of the phenomenology of CP violation in the decays of $K$ and $B$ mesons. In particular we discuss the commonly used classification of CP violation -- CP violation in the mass matrix, in the interference of mixing…

High Energy Physics - Phenomenology · Physics 2009-10-30 Gerhard Buchalla

We study Standard Model extensions with isodoublet vector-like quarks with standard charges. Their presence induces right-handed charged and neutral currents. We identify minimal sets of independent parameters characterizing these…

High Energy Physics - Phenomenology · Physics 2025-08-11 F. Albergaria , J. F. Bastos , B. Belfatto , G. C. Branco , J. T. Penedo , A. Rodríguez-Sánchez , J. I. Silva-Marcos

The currently favored model of CP violation is based on phases in the Cabibbo-Kobayashi-Maskawa (CKM) matrix describing the weak charge-changing couplings of quarks. The present status of parameters of this matrix is described. Tests of the…

High Energy Physics - Phenomenology · Physics 2014-11-17 Jonathan L. Rosner

With the help of a block parametrization of the canonical seesaw flavor textures in terms of the Euler-like rotation angles and CP-violaing phases, we derive a general and explicit expression for the Jarlskog invariant of CP violation in…

High Energy Physics - Phenomenology · Physics 2023-08-09 Zhi-zhong Xing

We analyze CP violation in supersymmetric extensions of the Standard Model with heavy scalar fermions of the first two generations. Neglecting intergenerational mixing in the sfemion mass matrices and thus considering only chargino, charged…

High Energy Physics - Phenomenology · Physics 2009-10-31 D. A. Demir , A. Masiero , O. Vives